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Burkhardt, Elke (2025): Whale sightings during POLARSTERN cruise PS141 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.980665

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Published: 2025-04-09DOI registered: 2025-05-08

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Abstract:
Data on whale distribution and abundance in the polar oceans is rather sparse, as implementing the standard surveying method, line-transect surveys, is challenging and costly. To overcome this problem, we initiated a program to electronically log all opportunistic cetacean sightings during all Polarstern expeditions through the nautical officer on watch. Opportunistic (visual) sightings by naked eye were logged during Polarstern Cruise PS141 (Hobart – Walvis Bay) by the nautical officer on duty using a customized Software package (WALOG, WhAleLOGger) installed on a touch screen laptop located on the ship's bridge. Species were identified by naked eye or handheld binoculars (7x50) to the lowest possible taxonomical level and assigned a "certainty" level of identification. The number of animals were counted if possible or estimated for larger groups. Whenever identification to species level was not possible, the next identifiable taxonomical category was assigned. Information on sighting position, date and time are automatically transferred from the ship's DAVIS-Ship System (https://dship.awi.de/) to the WALOG software at the time of logging. Photographs were taken, if possible, for retrospective analysis. All data of acquired sightings were retrospectively validated by a marine biologist and converted to a standard format. To this end, plausibility of sighting time, location, standardization of species names, eventual comments added at the time of sighting, as well as additional information such as photographs (if available) were checked either to verify or improve species identification. Datasets are used in species distribution modelling and to inform interested parties about occurrences.
Keyword(s):
Cetacean sightings; WALOG
Documentation:
Information for MAPS whale sighting data (2018-12-18). hdl:10013/epic.24d813e7-0158-4fc3-bc99-0f4ebb6beecc
Coverage:
Median Latitude: -64.777783 * Median Longitude: 101.452512 * South-bound Latitude: -66.796250 * West-bound Longitude: 57.720070 * North-bound Latitude: -60.853600 * East-bound Longitude: 112.080250
Date/Time Start: 2024-02-17T03:27:31 * Date/Time End: 2024-03-30T09:51:44
Event(s):
PS141-track * Latitude Start: -42.881625 * Longitude Start: 147.341528 * Latitude End: -22.896363 * Longitude End: 14.499230 * Date/Time Start: 2024-02-06T06:00:00 * Date/Time End: 2024-04-14T05:59:59 * Campaign: PS141 (EASI-3) * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT) * Comment: Hobart - Walvis Bay
Comment:
Date/Time is given in UTC. Certainty of identification: definite if observer clearly identified the species. The number of individuals is binned according to the options given in the data acquisition software: 1, 2, 3, less equal 5, less equal 10, greater than 10, greater than 20. More precise values may exist, due to observer comments.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DATE/TIMEDate/TimeBurkhardt, ElkeGeocode
LATITUDELatitudeBurkhardt, ElkeGeocode
LONGITUDELongitudeBurkhardt, ElkeGeocode
Whale speciesWhaleBurkhardt, ElkeVisual inspection
Certainty of identificationCertaintyBurkhardt, Elke
IndividualsInd#Burkhardt, ElkeVisual inspection
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
531 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Date/Time

Latitude

Longitude

Whale

Certainty

Ind [#]
2024-02-17T03:27:31-60.85360112.08025Balaenoptera physalusdefinite4
2024-02-17T03:40:34-60.87698112.03065Balaenoptera borealisdefinite3
2024-02-17T04:39:23-61.00028111.74902Balaenoptera aff. bonaerensisdefinite3
2024-02-17T05:23:26-61.11492111.55537Balaenoptera aff. musculusprobable1
2024-02-17T05:38:20-61.14850111.49835Balaenoptera physalusdefinite3
2024-02-17T06:19:37-61.24937111.31120Megaptera novaeangliaedefinite2
2024-02-17T08:03:19-61.51958110.86585Megaptera novaeangliaedefinite2
2024-02-17T09:11:31-61.69460110.56492Balaenoptera aff. bonaerensisprobable>5
2024-02-17T10:41:45-61.92815110.16040Megaptera novaeangliaedefinite3
2024-02-17T12:05:10-62.14047109.78977Megaptera novaeangliaedefinite2
2024-02-18T02:45:37-63.64228107.09173Megaptera novaeangliaedefinite3
2024-02-18T05:45:25-63.64303107.09283Megaptera novaeangliaedefinite>5
2024-02-18T06:08:19-63.64400107.09392Balaenoptera aff. bonaerensisdefinite1
2024-02-18T07:02:14-63.65745107.01435Megaptera novaeangliaedefinite>5
2024-02-18T07:08:59-63.66672106.97012Megaptera novaeangliaedefinite4
2024-02-18T07:48:37-63.72280106.69480Megaptera novaeangliaedefinite2
2024-02-18T08:22:45-63.77193106.45330Balaenoptera aff. bonaerensisdefinite1
2024-02-18T08:25:50-63.77640106.43163Balaenoptera physalusdefinite2
2024-02-18T10:55:20-63.99228105.36703Megaptera novaeangliaedefinite2
2024-02-18T21:15:12-64.88998101.03732Balaenoptera aff. bonaerensisprobable1
2024-02-19T02:51:10-65.69478100.29408Orcinus orcadefinite>5
2024-02-20T09:08:28-65.11013100.33265Whale, unidentifieddefinite1
2024-02-20T20:41:12-64.3763899.79317Megaptera novaeangliaedefinite1
2024-02-20T21:43:10-64.3140899.69392Megaptera novaeangliaedefinite1
2024-02-20T22:14:29-64.2822399.63930Megaptera novaeangliaedefinite1
2024-02-20T23:47:38-64.2050299.41752Megaptera novaeangliaedefinite1
2024-02-21T09:40:30-63.8442898.15097Megaptera novaeangliaedefinite2
2024-02-23T03:21:27-64.8534893.71462Megaptera novaeangliaedefinite1
2024-02-23T04:51:00-64.9611093.74655Megaptera novaeangliaedefinite1
2024-02-23T21:40:46-65.4856391.47215Megaptera novaeangliaedefinite2
2024-02-23T21:43:43-65.4888091.46905Megaptera novaeangliaedefinite3
2024-02-23T21:47:51-65.4934291.46460Megaptera novaeangliaedefinite5
2024-02-23T22:00:13-65.5074091.45258Megaptera novaeangliaedefinite>5
2024-02-23T22:10:57-65.5193891.44260Megaptera novaeangliaedefinite3
2024-02-23T22:14:03-65.5230891.43960Orcinus orcadefinite3
2024-02-23T22:50:46-65.5642891.40378Megaptera novaeangliaedefinite>5
2024-02-24T00:04:25-65.6437291.30412Megaptera novaeangliaedefinite2
2024-02-24T00:32:15-65.6710791.25430Megaptera novaeangliaedefinite2
2024-02-27T07:00:53-65.0634893.80557Balaenoptera aff. bonaerensisdefinite1
2024-02-27T11:45:51-65.0006593.64157Megaptera novaeangliaedefinite1
2024-02-27T12:36:25-64.9356893.64000Megaptera novaeangliaedefinite2
2024-02-27T12:52:27-64.8916293.66867Megaptera novaeangliaedefinite2
2024-02-27T12:56:03-64.8821393.67707Megaptera novaeangliaedefinite1
2024-02-27T13:39:55-64.7837793.87115Megaptera novaeangliaedefinite2
2024-02-27T21:27:35-64.1660896.71748Megaptera novaeangliaedefinite2
2024-02-27T22:15:19-64.1348897.05898Megaptera novaeangliaedefinite1
2024-02-27T22:20:11-64.1318297.09507Megaptera novaeangliaedefinite1
2024-02-27T22:48:20-64.1256397.30725Megaptera novaeangliaedefinite3
2024-02-27T22:49:26-64.1255297.31583Megaptera novaeangliaedefinite2
2024-02-27T22:53:19-64.1255397.34507Megaptera novaeangliaedefinite1
2024-02-27T22:55:04-64.1255897.35857Megaptera novaeangliaedefinite3
2024-02-27T22:56:40-64.1255797.37083Megaptera novaeangliaedefinite4
2024-02-27T23:17:57-64.1313097.53302Balaenoptera aff. bonaerensispossible1
2024-02-27T23:34:04-64.1282597.65443Megaptera novaeangliaepossible1
2024-02-27T23:54:10-64.1209097.80483Megaptera novaeangliaedefinite1
2024-02-28T00:27:03-64.1147598.05108Balaenoptera aff. bonaerensisprobable2
2024-02-28T00:46:19-64.1131298.19472Megaptera novaeangliaedefinite2
2024-02-28T02:38:24-64.2400798.90737Megaptera novaeangliaedefinite1
2024-02-28T03:39:39-64.4003799.04923Megaptera novaeangliaedefinite3
2024-02-28T04:46:05-64.6058099.10862Megaptera novaeangliaedefinite1
2024-02-28T05:43:56-64.7380799.32713Orcinus orcadefinite5
2024-02-28T05:46:31-64.7413099.34030Balaenoptera aff. bonaerensisdefinite1
2024-02-28T09:54:08-64.80915100.05613Megaptera novaeangliaeprobable1
2024-02-28T13:37:11-64.7333399.94273Megaptera novaeangliaepossible>20
2024-02-29T22:09:03-64.80523100.23277Balaenoptera aff. bonaerensisdefinite>10
2024-02-29T22:10:05-64.80347100.22793Megaptera novaeangliaedefinite2
2024-02-29T22:14:31-64.79548100.20637Megaptera novaeangliaedefinite2
2024-02-29T22:21:13-64.78337100.17298Balaenoptera aff. bonaerensisdefinite>5
2024-02-29T22:30:19-64.76653100.12707Balaenoptera aff. bonaerensisdefinite>5
2024-02-29T22:39:14-64.75040100.08290Megaptera novaeangliaedefinite1
2024-03-01T03:50:27-64.73925100.14637Megaptera novaeangliaedefinite2
2024-03-01T04:16:24-64.72225100.09978Megaptera novaeangliaedefinite2
2024-03-01T05:13:12-64.68752100.00643Megaptera novaeangliaedefinite1
2024-03-01T05:29:01-64.6734399.98765Megaptera novaeangliaedefinite3
2024-03-01T05:42:28-64.66190100.01327Megaptera novaeangliaedefinte2
2024-03-01T07:06:41-64.69880100.17538Megaptera novaeangliaedefinite1
2024-03-01T08:03:31-64.73980100.28820Megaptera novaeangliaedefinite2
2024-03-02T00:39:18-64.80835104.22210Megaptera novaeangliaedefinite2
2024-03-02T03:32:48-65.08727105.26655Megaptera novaeangliaedefinite5
2024-03-02T08:15:51-65.64997107.23117Megaptera novaeangliaedefinite1
2024-03-02T08:26:03-65.66788107.32063Balaenoptera aff. bonaerensisdefinite2
2024-03-02T09:05:59-65.74677107.69742Lissodelphis peroniipossible2
2024-03-02T09:13:52-65.75210107.73770Balaenoptera borealisdefinite2
2024-03-02T09:30:30-65.77252107.89005Balaenoptera borealisdefinite2
2024-03-02T09:37:21-65.78988107.96473Balaenoptera aff. bonaerensisdefinite5
2024-03-02T09:42:16-65.79492107.99003Megaptera novaeangliaedefinite1
2024-03-04T04:40:37-66.23140109.68905Balaenoptera aff. bonaerensisdefinite1
2024-03-06T04:24:40-65.45870107.47070Balaenoptera aff. bonaerensisdefinite3
2024-03-06T04:43:14-65.43743107.44392Megaptera novaeangliaedefinite1
2024-03-06T04:54:35-65.42497107.42777Megaptera novaeangliaedefinite1
2024-03-06T06:24:36-65.32567107.31153Megaptera novaeangliaedefinite1
2024-03-06T06:38:51-65.30992107.29065Megaptera novaeangliaedefinite1
2024-03-06T07:39:22-65.24637107.21700Balaenoptera aff. bonaerensisdefinite2
2024-03-06T07:54:03-65.23295107.22030Megaptera novaeangliaedefinite1
2024-03-06T08:44:34-65.23993107.29773Megaptera novaeangliaedefinite2
2024-03-06T09:06:53-65.23108107.24943Megaptera novaeangliaedefinite5
2024-03-06T09:32:32-65.20433107.19147Megaptera novaeangliaedefinite1
2024-03-06T09:35:43-65.20150107.18472Megaptera novaeangliaedefinite2
2024-03-06T10:04:59-65.17257107.11947Megaptera novaeangliaedefinite2
2024-03-06T10:46:50-65.12493107.05162Megaptera novaeangliaedefinite4
2024-03-06T10:47:03-65.12468107.05125Megaptera novaeangliaeprobable2
2024-03-06T11:16:54-65.08992107.00460Megaptera novaeangliaedefinite1
2024-03-06T13:05:57-64.96535106.88160Megaptera novaeangliaedefinite2
2024-03-06T22:05:33-64.87243106.36518Megaptera novaeangliaedefinite1
2024-03-06T23:16:21-64.95810106.30972Megaptera novaeangliaedefinite3
2024-03-06T23:22:05-64.96543106.30533Megaptera novaeangliaedefinite2
2024-03-06T23:27:36-64.97248106.30108Megaptera novaeangliaedefinite1
2024-03-07T02:43:52-65.22370106.21667Megaptera novaeangliaeprobable2
2024-03-07T03:46:57-65.29840106.21978Large whale, unidentifieddefinite1
2024-03-07T04:17:00-65.33005106.22528Megaptera novaeangliaeprobable1
2024-03-07T04:48:23-65.37713106.26408Megaptera novaeangliaedefinite2
2024-03-07T10:29:14-65.60042106.90838Balaenoptera aff. bonaerensisprobable1
2024-03-07T21:21:58-65.35405108.70327Megaptera novaeangliaedefinite1
2024-03-07T21:31:46-65.36890108.69542Megaptera novaeangliaedefinite2
2024-03-07T21:39:02-65.37998108.68933Megaptera novaeangliaedefinite2
2024-03-07T21:45:41-65.39010108.68392Megaptera novaeangliaedefinite3
2024-03-07T21:47:51-65.39347108.68213Megaptera novaeangliaedefinite1
2024-03-07T22:05:31-65.42153108.66720Megaptera novaeangliaedefinite>5
2024-03-07T22:13:17-65.43340108.66073Megaptera novaeangliaedefinite4
2024-03-07T22:31:45-65.46127108.64603Megaptera novaeangliaedefinite1
2024-03-07T22:44:05-65.47863108.63632Megaptera novaeangliaedefinite>5
2024-03-07T23:02:26-65.50611108.62159Megaptera novaeangliaedefinite2
2024-03-07T23:25:11-65.53318108.60763Megaptera novaeangliaedefinite2
2024-03-07T23:32:57-65.54313108.60225Megaptera novaeangliaedefinite4
2024-03-07T23:55:04-65.57157108.58693Megaptera novaeangliaedefinite1
2024-03-07T23:59:02-65.57675108.58415Megaptera novaeangliaedefinite3
2024-03-08T00:33:00-65.62117108.56042Megaptera novaeangliaedefinite2
2024-03-08T00:36:47-65.62603108.55777Megaptera novaeangliaedefinite2
2024-03-08T01:19:07-65.67992108.52872Megaptera novaeangliaedefinite2
2024-03-08T01:36:42-65.70344108.51563Megaptera novaeangliaedefinite2
2024-03-08T02:13:31-65.74120108.50135Megaptera novaeangliaedefinite2
2024-03-08T03:18:58-65.69857108.53287Megaptera novaeangliaedefinite2
2024-03-08T04:50:49-65.69125108.26781Balaenoptera aff. bonaerensispossible2
2024-03-08T09:27:40-65.53587108.01153Balaenoptera aff. bonaerensisdefinite1
2024-03-08T23:23:09-65.69808107.46912Balaenoptera aff. bonaerensisdefinite2
2024-03-09T04:02:51-65.88142107.58837Balaenoptera aff. bonaerensisdefinite1
2024-03-10T06:34:16-66.33223108.47895Balaenoptera aff. bonaerensisdefinite1
2024-03-10T22:19:09-65.57120108.65322Balaenoptera aff. bonaerensisdefinite1
2024-03-10T22:20:19-65.57163108.64577Balaenoptera aff. bonaerensisdefinite1
2024-03-11T08:53:17-65.09240107.04540Megaptera novaeangliaedefinite2
2024-03-11T08:58:10-65.07947107.03035Megaptera novaeangliaeprobable2
2024-03-11T09:19:58-65.02235106.96488Megaptera novaeangliaedefinite1
2024-03-11T09:41:26-64.96587106.90098Megaptera novaeangliaeprobable1
2024-03-11T22:06:54-65.30617107.77737Megaptera novaeangliaedefinite2
2024-03-11T22:12:11-65.31827107.80720Balaenoptera aff. bonaerensisdefinite1
2024-03-12T01:23:07-65.74032108.87947Balaenoptera aff. bonaerensisdefinite3
2024-03-12T02:28:26-65.86982109.11725Balaenoptera aff. bonaerensisdefinite2
2024-03-12T02:35:13-65.87723109.15748Balaenoptera aff. bonaerensisdefinite2
2024-03-12T05:14:48-66.15903109.89700Balaenoptera aff. bonaerensisdefinite4
2024-03-12T22:23:52-66.79625109.16070Orcinus orcadefinite4
2024-03-15T01:17:13-64.40607100.11625Balaenoptera aff. bonaerensisdefinite1
2024-03-15T01:23:09-64.39913100.04095Megaptera novaeangliaedefinite1
2024-03-15T01:25:05-64.39915100.04117Balaenoptera aff. bonaerensisdefinite2
2024-03-15T02:57:49-64.3139099.16435Balaenoptera aff. bonaerensisdefinite5
2024-03-15T03:17:07-64.3022398.96314Megaptera novaeangliaeprobalbe1
2024-03-15T07:02:50-64.1838596.98060Megaptera novaeangliaeprobable2
2024-03-20T02:31:33-64.1321098.99445Megaptera novaeangliaedefinite2
2024-03-20T07:27:10-64.1428598.99987Megaptera novaeangliaedefinite2
2024-03-20T07:42:44-64.1234299.08298Megaptera novaeangliaedefinite1
2024-03-23T08:53:05-64.1407099.35265Megaptera novaeangliaedefinite3
2024-03-23T23:36:37-64.39890101.45453Megaptera novaeangliaedefinite2
2024-03-24T09:16:10-64.66857101.66882Megaptera novaeangliaedefinite1
2024-03-24T09:20:43-64.67213101.65612Megaptera novaeangliaedefinite2
2024-03-24T09:34:20-64.68285101.61940Megaptera novaeangliaedefinite3
2024-03-24T10:03:58-64.70543101.54155Megaptera novaeangliaedefinite1
2024-03-27T01:36:57-64.2563395.16247Megaptera novaeangliaedefinite2
2024-03-27T12:01:52-65.0859289.68232Megaptera novaeangliaedefinite1
2024-03-28T07:03:52-65.9417084.04777Megaptera novaeangliaedefinite>10
2024-03-29T08:21:40-65.0909571.16827Megaptera novaeangliaedefinite2
2024-03-29T08:36:09-65.0909771.03195Megaptera novaeangliaedefinite2
2024-03-29T08:41:20-65.0909370.98318Megaptera novaeangliaedefinite3
2024-03-29T10:13:49-65.0909270.11397Megaptera novaeangliaeprobable2
2024-03-29T11:52:48-65.0909269.18508Megaptera novaeangliaedefinite1
2024-03-29T12:05:11-65.0909069.06912Megaptera novaeangliaeprobable1
2024-03-29T12:08:17-65.0909569.03932Megaptera novaeangliaedefinite1
2024-03-29T12:54:10-65.0909768.61095Megaptera novaeangliaedefinite1
2024-03-30T09:51:44-64.7106557.72007Balaenoptera physalusdefinite2